package yjj;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/user/yjjedit")
public class UserEdit extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //1. 取值
        String name = req.getParameter("n");
        String username = req.getParameter("un");
        String id = req.getParameter("id");

        //2. 储值
        if (id !=null && !"null".equals(id)){
            //存在id，执行更新
            String sql="UPDATE `user` SET `name`=?,username=? WHERE id=?";
            JdbcUtils.modify(sql,name,username,id);
        }else {
            //不存在id,执行插入
            String sql="INSERT INTO `user` (username, `password`,`name`) VALUES(?,MD5('666'),?)";
            JdbcUtils.modify(sql,username,name);
        }

        //3. 跳转
        resp.sendRedirect("/yjj/resume.jsp");
    }
}
